She made the call one day after Trump downplayed Russian President Vladimir Putin’s human rights record by questioning whether the United States, which has a long record of extrajudicial killings, is pure on the matter.

“I want to know what the Russians have on Donald Trump. I think we have to have an investigation by the FBI into his financial, personal and political connections to Russia and we want to see his tax returns so we can have truth in the relationship [with] Putin, whom he admires,” Pelosi said on NBC’s “Meet the Press.”

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Pelosi made the same demand on Jan. 13 after a closed-door briefing by U.S. intelligence officials about Russian meddling in the 2016 presidential election. The CIA has concluded that Russian intelligence tried to swing the election in Trump’s favor.

Trump’s relationship with Putin has come under scrutiny again after he told Fox News’s Bill O’Reilly on Saturday that he respects the Russian president, who has cracked down on political opposition, non-government advocacy groups and domestic critics.

“I do respect him. Well, I respect a lot of people, but that doesn’t mean I’ll get along with them,” Trump said.

When O’Reilly asserted that “Putin is a killer,” Trump compared Russia’s record with that of the United States.

“There are a lot of killers. We have a lot of killers,” Trump said. “Well, you think our country is so innocent?”